John van brtjut



l. VAN BRUNT.

VALVE.

APPLICATION FILED MAR. 4, 1919.

1,345,51., Patented July 6, mw.

A l i INL/'ENTOR A TTR muren stares QFQE.

JOI-IN VAN BRUNT, O F NEW YORK, N. Y., ASSIGNOR TO COMBUSTIONENGINEERING CORPORATION, OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

VALVE.

specification 0f Letters Patent.

Patented .nay e, ieee.

Application filed March 4, 1919. Serial No. 280.536.

To LU ywho/a t may concern lie it known that l, JOHN VAN IRUNT, acitizen of the UnitedStates, residing at city ot' New York, county ofQueens, and State oi New York, have invented certain new and usefulImprovements in TValves, otu-'hich the following is full, clear, and ex;-t description.

My invention relates to improvements in alves and has for its object toproduce a valve adapted to be used as a throttle valve and adjustable sothat when the plug` is turned through a given angle the ports ot thevalve will be more or less completely open according to the adjustment.

rilhrottle valves in certain relations are automatically actuated bymeans which turn the plug through a given angle so as to fully open theports of the valve or Jr'ully close the same. There are, however,conditions when it is not desirable to have the valve ports fully openedand the object ot my invention is to produce a valve in which the iullthrow et the plug, so as to bring its passage into the same plane as thevalve ports, will not necessarily open those ports to a maximlun rlhefollowing is a description oi' an embodiment of my invention, referencebeing had to the accompanying drawings, in which,

Figure 1 shows a longitudinal section through the valve casing and itsports with the plug adjusted in one position relatively to its casing;

Fig. 2 is a similar section with the plug adjusted so as to be inanother position;

Fig. 3 is a transverse section or' the valve on the line 3 3, Fig. l,and

Fig. et is a similar transverse section with the plug moved axially topartially close the ports.

Referring more particularly to the drawings, l is a valve casing havinga cylindrical bore. It is provided with nipples 2- for the pipes 3-3leading 'from the ports 4*-4. 5-5 are caps for the casing and 6 is acylindrical valve plug within the casing, having internal screw-threads1l upon the lower cap and having a head l2 swivelcd to the valve plug sothat the plug is tree to turn relatively to the adjusting member'.

When the parts are in the position shown in Figs. l and 3, the actuatingmember S being turned so as to aline the passage (5 with the ports eineand cause them to fully register therewith, the valve ports will befully opened. If, however, it is desired that the passage through thevalve shall not be at its maximum when the lever 9 is in the positionshown, the adjusting member 10 is actuated so that the plug 6 is drawndownward so that the passage 6 can not be made to fully register withthe ports lr-4l', being moved out of the transverse plane passingthrough the ports (L -4C. In this way the opening through the valve maybe made as much smaller as desired when the lever 9 is turned to theposition corresponding to the maximum. rlfhis longitudinal shifting ot'the valve plug is permitted by the sliding engagement of the angularportion T with the socket 7 (Fig. 2) in the plug. By this means thevalve plug can he adjusted so as to close the opening through the valveto any desired degree, thus reducing the opening through the valve .fforresponding to the maximum throw ot the actuating lever, so that theopening through the valve can be made greater or less as desired for anygiven angular movement of the plug.

lVhen such a valve is used for controlling an engine it can be adjustedso that the maximum speed ot the engine will not be reached until theoperating lever is moved through its entire range or the valve can headjusted so that a speed below the maximum will he reached only when theoperating lever is moved through its entire range. When once adjustedthe opening' and closing of the valve in practice will be done entirelyby the lever rotating the plug.

As will be evident to those skilled in the art, my invention permits ofvarious modifications without departing from the spirit thereof or thescope ot the appended claims.

What I claim is:

l. An adjustable throttle valve comprising a casing having a cylindricalbore, an inlet port and a discharge port on opposite sides thereof andend caps, a cylindrical plug longitudinally movable in said bore andhaving a passage extending diametri- Y cally through the saine andadapted to register with said ports as said plug is revolved, means ior'adjusting said plug axially so as to move said passage more or less outof the transverse plane passing through said ports Y ing a easing havinga cylindrical bore,an

inlet port anda discharge port on opposite sides thereof and end caps, acylindrical plug longitudinally movable in said bore and having apassage extending diametrically through thesame and adapted to registerwith said ports as said plug is revolved, an adjusting screiv, sWiVeledto said plug and engaging stationary serew-threads7 and an actuatingmember passi/ng through the other 3. An adjustable throttle valvecompris-V ing a casing having a cylindrical bore,v an inlet port and aVdischarge port Aon opposite sides of said casing and end caps, a cylinVdrical plug longitudinally movable in said bore and having a passageextending diametrically through the same and adapted to register withsaid ports as said plug is revolved, an adjusting screw7 swiveled tosaid plug and engaging stationary screw-threads, and an actuating memberpassing through the other cap and connected with said plug so as torotate therewith, said actuating member having one end extending intosaid plug and making a sliding engagement thereWith. Y

Jon-N van BaUNT.

